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sp1/y owned since 2000
11 Posts
Discussion Starter · #1 ·
howdy,ive been using the hrc qat tube without changing the housing for the last month and it works fine, but i could hear the cables rubbing on the stock sp1 housing so i found the discontinued housing kit on ebay

Tire Black Automotive tire Font Auto part

its a larger housing but the main difference is how the cables enter at a better angle into the bottom half to give a straight run for the wider hrc tube. hrc on the right

Bicycle part Font Carmine Automotive tire Metal

hrc housing is on top, it is also narrower internally so the tube has less side to side movement on the bar

Machine Font Metal Bicycle part Auto part

screws are shorter too
Hood Automotive lighting Automotive design Motor vehicle Grille

i didn't get hrc cables so the nipples need to be filed down to fit the housing. 7.0 mm stock down to about 5.5mm ( .75mm each side)

Gas Measuring instrument Auto part Motor vehicle Machine

Calipers Gadget Measuring instrument Gas Electronic device

the cable length was fine with just the tube but with the new housing it was too tight with max adjustment. so at the throttle bodies i moved top cables locknut from the right of the cable holder to the left side, this gave enough freeplay to use the handlebar adjuster barrel

Vehicle Automotive lighting Automotive exhaust Automotive design Motor vehicle

all runs very free now
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